NEC NC1600C Service Manual page 378

REPLACEMENT OF THE LAMP HOUSE AND BULB
14. Adjust the optical axis of the lamp bulb.
Turn on the power of the main unit, and the lamp lights.
(1 ) Remove the optical axis adjustment cover from the rear panel of the main unit (2 pieces of screws).
(2) Call up "Bulb Alignment" on the menu of the main unit (refer to the installation manual for the call-up
method).
Turn the axis adjustment screws with a 5 mm balldriver to set the displayed value to the maximum.
Adjust all of 3 adjustment screws (X-, Y-, and Z-axes).
(3) Put the cover on and turn off the power of the main unit.
"Confidential, Do Not Duplicate without written authorization from NEC."
The X-axes
The
The Y-axes
Z-axes
14-10